staging/lustre/llite: strengthen checks for hsm flags and archive id
Prior to this patch undefined flags bits and out of range archive id can be set. Signed-off-by: Bruno Faccini <bruno.faccini@intel.com> Reviewed-on: http://review.whamcloud.com/13337 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5757 Reviewed-by: frank zago <fzago@cray.com> Reviewed-by: Henri Doreau <henri.doreau@cea.fr> Signed-off-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>hifive-unleashed-5.1
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44ecac6889
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2742c75ec6
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@ -365,6 +365,13 @@ static inline __u64 fid_ver_oid(const struct lu_fid *fid)
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return ((__u64)fid_ver(fid) << 32 | fid_oid(fid));
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}
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/* copytool uses a 32b bitmask field to encode archive-Ids during register
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* with MDT thru kuc.
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* archive num = 0 => all
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* archive num from 1 to 32
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*/
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#define LL_HSM_MAX_ARCHIVE (sizeof(__u32) * 8)
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/**
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* Note that reserved SEQ numbers below 12 will conflict with ldiskfs
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* inodes in the IGIF namespace, so these reserved SEQ numbers can be
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@ -2118,12 +2118,21 @@ static int ll_hsm_state_set(struct inode *inode, struct hsm_state_set *hss)
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struct md_op_data *op_data;
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int rc;
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/* Detect out-of range masks */
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if ((hss->hss_setmask | hss->hss_clearmask) & ~HSM_FLAGS_MASK)
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return -EINVAL;
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/* Non-root users are forbidden to set or clear flags which are
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* NOT defined in HSM_USER_MASK. */
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if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) &&
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!capable(CFS_CAP_SYS_ADMIN))
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return -EPERM;
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/* Detect out-of range archive id */
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if ((hss->hss_valid & HSS_ARCHIVE_ID) &&
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(hss->hss_archive_id > LL_HSM_MAX_ARCHIVE))
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return -EINVAL;
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op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
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LUSTRE_OPC_ANY, hss);
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if (IS_ERR(op_data))
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